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/* error.c: The error reporting widget
Copyright (c) 2002-2005 Philip Kendall
$Id: error.c 4103 2009-11-21 10:16:36Z fredm $
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Author contact information:
E-mail: philip-fuse@shadowmagic.org.uk
*/
#include <config.h>
#include <ctype.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include "fuse.h"
#include "widget_internals.h"
widget_error_t *error_info;
int
ui_error_specific( ui_error_level severity, const char *message )
{
widget_error_t error_info;
/* Can't output widgets if we don't have a display yet */
if( !display_ui_initialised ) return 0;
error_info.severity = severity;
error_info.message = message;
fuse_emulation_pause();
widget_do( WIDGET_TYPE_ERROR, &error_info );
fuse_emulation_unpause();
return 0;
}
int widget_error_draw( void *data )
{
char **lines; size_t count;
size_t i;
error_info = (widget_error_t*)data;
if( split_message( error_info->message, &lines, &count, 28 ) ) return 1;
widget_dialog_with_border( 1, 2, 30, count+2 );
switch( error_info->severity ) {
case UI_ERROR_INFO:
widget_printstring( 10, 16, WIDGET_COLOUR_TITLE, "Info" );
break;
case UI_ERROR_WARNING:
widget_printstring( 10, 16, WIDGET_COLOUR_TITLE, "Warning" );
break;
case UI_ERROR_ERROR:
widget_printstring( 10, 16, WIDGET_COLOUR_TITLE, "Error" );
break;
default:
widget_printstring( 10, 16, WIDGET_COLOUR_TITLE, "(Unknown message)" );
break;
}
for( i=0; i<count; i++ ) {
widget_printstring( 17, i*8+24, WIDGET_COLOUR_FOREGROUND, lines[i] );
free( lines[i] );
}
free( lines );
widget_display_lines( 2, count + 3 );
return 0;
}
int
split_message( const char *message, char ***lines, size_t *count,
size_t line_length )
{
const char *ptr = message;
int position;
line_length *= 8;
/* Setup so we'll allocate the first line as soon as we get the first
word */
*lines = NULL; *count = 0; position = line_length;
while( *ptr ) {
/* Skip any whitespace */
while( *ptr && isspace( *ptr ) ) ptr++; message = ptr;
/* Find end of word */
while( *ptr && !isspace( *ptr ) ) ptr++;
/* message now points to a word of length (ptr-message); if
that's longer than an entire line (most likely filenames), just
take the last bit */
while( widget_substringwidth( message, ptr - message ) >= line_length )
message++;
/* Check we've got room for the word, plus some prefixing space */
if( position + widget_substringwidth( message, ptr - message ) + 4
>= line_length ) {
char **new_lines; size_t i;
/* If we've filled the screen, stop */
if( *count == 18 ) return 0;
new_lines = realloc( (*lines), (*count + 1) * sizeof( char** ) );
if( new_lines == NULL ) {
for( i=0; i<*count; i++ ) free( (*lines)[i] );
if(*lines) free( (*lines) );
return 1;
}
(*lines) = new_lines;
(*lines)[*count] = malloc( (line_length+1) );
if( (*lines)[*count] == NULL ) {
for( i=0; i<*count; i++ ) free( (*lines)[i] );
free( (*lines) );
return 1;
}
strncpy( (*lines)[*count], message, ptr - message );
position = widget_substringwidth( message, ptr - message );
(*lines)[*count][ptr - message] = '\0';
(*count)++;
} else { /* Enough room on this line */
strcat( (*lines)[*count-1], " " );
(*lines)[*count-1][strlen( (*lines)[*count-1] ) + ptr - message] = '\0';
strncat( (*lines)[*count-1], message, ptr - message );
position += widget_substringwidth( message, ptr - message ) + 4;
}
message = ptr;
}
return 0;
}
void
widget_error_keyhandler( input_key key )
{
switch( key ) {
case INPUT_KEY_Escape:
widget_end_widget( WIDGET_FINISHED_CANCEL );
return;
case INPUT_KEY_Return:
case INPUT_KEY_KP_Enter:
widget_end_widget( WIDGET_FINISHED_OK );
return;
default: /* Keep gcc happy */
break;
}
}
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